THREE PHASE INTERLEAVED ISOLATED DC/DC CONVERTER

摘要

PURPOSE: A three phase interleaved isolated DC/DC converter is provided to reduce the size of a filter element by reducing the ripple of an input current by the interleave operation of an input boost inductor. CONSTITUTION: A boost convertor unit(310) includes three MOSFET main switches(S1-S3) and three boost inductors(L1-L3). An active clamp unit(320) reduces the switching loss by the zero voltage switching and includes three MOSFET auxiliary switches(Sc1-Sc3) and a clamp capacitor(Cc). The clamp capacitor clamps the inductor surge voltage applied to the three MOSFET auxiliary switches.